Antifriction-bearing.



A. A. WEIGEL. ANTIFRICTION BEARING.

APPLICATION FILED IULY 3,1915.

1 1 80,35 1 Patented Apr. 25, 1916.

2 SHEETS-SHEET I.

:ST- /2 -f A. A. WEIGEL.

ANTIFRICTION BEARING.

APPLICATION FILED JULY 3.1915.

1,180,351. Patented Apr. 25,1916.

2 SHEETS-SHEET 2. A

ffm! 71 M' @5ml/MW UNITED STATES PATENT OFFICE.

ARNOLD A. WEIGEL, OF CHICAGO, ILLINOIS, ASSIGNOR TO ALBERT G. WELCH, TRUSTEE, OF CHICAGO, ILLINOIS.

. ANTIFRICTION-BEARING.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application led July 3, 1915. Serial No. 37,5132.

To all whom t may concern scription thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, which form a part ofthis specification.

This lnvention relates to improvements in Be it known that I, ARNOLD A. WEIGEL, a

12-12 and upright end walls l3-13. The shell is open at the bottom and contains a base plate 13X which is separable from the casing and is conned in position b the side nd end walls of said casing. aid base plate has at its ends, upright flanges 14-14 which rise from the bottom of the casing at points spaced from the ends of said casing and which are curved toward their tops over into the neighborhood of the ends of said asing. A wear plate 15 rests on the top of the base 13". Said wear plate is narrower than said base and is confined in position by antifriction bearings and consists of the the end flanges 14-14 hereinbefore referred matters hereinafter described and more particularly pointed out in the appended claims.

The anti-friction bearing, as shown herein, is designed more particularly for use as a side bearing for railroad cars to be interposed between the car bolster and truck bolster. As illustrated it is embodied in a form for application or attachment to the truck bolster. The novel features of the improved bearing and its several advantages will ap-rlV .f5 and the truck bolster.

pear as I proceed with my specification.

In the drawings: Figure l is a top plan view of the improved anti-friction bearing, part of the casing being shown in horizontal section. Fig. 2 is a detailed perspective view of a housing contained. in the casing to be more particularly referred to later. Fig. 3 is a view representing a longitudinal section through the bearing in a plane indicated by the line 3-3 of Fig. 1. Fig. -1 is a view showing the anti-friction elements after they have been oscillated from their normal position in the transmission of a load between the two bearing members intermediate of which the anti-friction device is located. Fig. 5 is a view representing a vertical transverse section through the bearing in a plane indicated by the line of 5-5 of Fig. 3.

Referring now to that embodiment of my invention illustrated in the drawings, 10 indicates the casing or shell which is attached to the truck bolster of a railroad car and which contains the anti-friction bearing element. Said shell has laterally extending lugs or ears 11-11 provided` with suitable apertures for bolts or screws, by means of which the shell may be attached to the truck bolster. The shell 10 is elongated and rectangularl in form, having upright side walls are spaced inwardly from tlie sides of the base. The anti-friction elements bear directly upon the wear plate 15 and as illustrated herein consist of two rockers 17-17. It will be understood, of course, that any num- "ber of anti-friction elements may be used in |the casing, depending upon the load to be transmitted between the car body bolster Said anti-friction elements are segments of cylinders and have top and bottom cylindric bearing surfaces 18-19 respectively. 20 indicates the sides of the anti-friction elements or rockers. Each of said sides are curved inwardly toward the vertical central axial plane of the anti-friction element from the lines in which the top and bottom bearing surfaces of said element terminate, as shown at 21, in such manner that as the adjacent element rocks, the like line of said adjacent element will ride upon, without binding against the said side, as clearly illustrated in Fig. Li.

By providing intermediate reverse curve of the same radius as indicated at 22, when the anti-friction elements have been rocked through the full amplitude of their oscillation, the side of one will engage and rock next the end of the casing comes to bear against the associated flange 14 of the base 13X, the curvature of which is made such as to engage and fit the reversed curved part 22 of the side of said anti-friction element.

-To insure the return of the anti-friction rockers to the normal upright position at the center of the casing as shown in Fig. 4. when they are released from load, 1 provide the following.

23-23 indicate housings spaced at each side of the casing and extending along the ends of the antifriction elements. Each of said housings consists of an upright plate 24 having a continuous longitudinal horizontal flange 25 at the top and short longitudinallyY spaced horizontal flanges 26-26 at the bottom and near each end.

27 indicates end flanges on said housings, said flanges being provided with notched openings 28. The plate 24 is provided with two longitudinally spaced bearing openings 29, there being one of such openings for each anti-friction element in the. casing. Said bearing openings are closed at the top but open at the bottom. Each anti-friction element is provided with a short stud or trunnion 30 at either end and said trunnions engage within the bearing openings 29 in such manner that the housing is supported on the said trunnions and will move longitudinally in the casing as the anti-friction elements are rocked toward one end or the other of the casing.

32 indicates a coiled spring in the housing. Said coiled spring extends between the end flanges 27 of the housing and engages against the inner faces of said flanges. There are provided on the side walls of the shell in line with the notched openings 28 of the end flanges, inwardly extending horizontal lugs 33 which are adapted for engagement with the ends of said coiled spring. As the rockers are rocked toward one end of the casing, the housing 23, being carried by and moving with them, will bring the end of the spring, that is to say, the end of the spring toward the end of the casing that the rockers are approaching, against the associated lug 33 and while the housing will continue to advance with the rockers, the spring will be compressed against said lug. Upon the release of the rockers, the spring will cause the housing to return to its initial horizontal position and the anti-friction rockers will be thus forced back to the normal central upright position. The antifriction rockers are provided with a second set of extensions or lugs 34 at either end near their bottom bearing surfaces, said lugs as shown being of a flat triangular section. The upright lateral flanges 16 of the base are provided with open notches 16a to receive said lugs. This arrangement and construction is of assistance in guiding the bottom part of the rockers and maintaining them in required upright position.

There are provided in the end flanges 14-14 of the base 13X ventilation openings l-41 and in line with said openings there are also provided similar openings 40-40 inthe upright end walls 12-12 of the casing. The said openings provide for vthe elimination of water, dust, fine particles of cinders and the like in a manner familiar in this type of bearing.

It is apparent that the housing members 23, besides performing the functions hereinbefore mentioned, retain said antifriction elementsv in their properly spaced relation, both when in their normal upright position and during their oscillation in either direction therefrom.

I claim as my invention:

l. In combination with a casing, a base supported therein and anti-friction rockers located within said casing and adapted to rock on said base, housings mounted to slide said casing adjacent the ends of said antifriction rockers, coacting means provided on said housings and anti-friction rockers adapted to move said housings with the rocking movement of said anti-friction rockers, coiled springs mounted in said housings and abutments ixed in said casing in line with the ends of said coiled springs, said housings being provided at their ends with apertures into which said abutments extend.

2. An anti-friction bearing of the kind described, comprising a casing open at the top and having upright side walls and anti-friction rockers contained in said casing, said rockers being provided with trunnions at each end, housings located adjacent the side walls of said casing, said anti-friction rockers being provided with trunnions and said housings having a wall located adjacent the ends of said anti-friction rockers provided with downwardly opening notches engaged by said trunnions, coiled springs in said housings, said housings having aper-v tured end walls against which said coiled springs abut, and abutments fixed to the side walls of said casing in line with the apertures in the end walls of said housings.

3. An anti-friction device of the kind described, comprising a casing consisting of a shell open top and bottom and having side and end walls, a base plate located within said shell, said base plate being provided with upright flanges spaced from the side walls of said casing and with end ianges which rise from said base plate at points spaced from the end walls of said casing and vare curved at their upper ends toward said end walls, a wear plate resting on said base and confined between said flanges, and antifriction rockers mounted to rock upon said wear plate, the sides of the rockers facing toward the ends of said casing being constructed to engage with and lock against the presence of two Witnesses, this 1st day of upper curved ends of the end anges of said February, A. D. 1915.

base plate When said rockers reach the limit of their movement in one direction or the ARNOLD A WEIGEL' 5 other. Witnesses:

In testimony that I claim the foregoing as T. H. ALFRnDs, my invention I afiix my signature in the KARL W. DALL.

Copie! ot this potent muy be obtained for iive cents each, by addressing the Commissioner o! Potent. Wallington, D. c." 

